STOCKHOLDERS' EQUITY - Stock Option Information (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Jan. 31, 2026	Jan. 31, 2025
Number of Options
Outstanding, beginning of period (in shares)	13,164,743
Outstanding, end of period (in shares)	9,443,196	13,164,743
Stock options
Number of Options
Outstanding, beginning of period (in shares)	13,164,743
Granted (in shares)	415,109
Exercised (in shares)	(4,085,234)
Forfeited (in shares)	(51,422)
Outstanding, end of period (in shares)	9,443,196	13,164,743
Expected to vest (in shares)	9,443,196
Options, vested and exercisable, number (in shares)	7,580,479
Weighted-Average Exercise Price
Outstanding, beginning of period (in USD per share)	$ 6.31
Granted (in USD per share)	1.13
Exercised (in USD per share)	4.42
Forfeited (in USD per share)	2.26
Outstanding, end of period (in USD per share)	6.92	$ 6.31
Expected to vest (in USD per shares)	6.92
Options, vested and exercisable, weighted average exercise price (in USD per share)	$ 6.66
Weighted-Average Remaining Contractual Term (in years)
Weighted-Average Remaining Contractual Term (in years), Outstanding	4 years 9 months 29 days	5 years 7 days
Expected to vest (in years)	4 years 9 months 29 days
Weighted-Average Remaining Contractual Term (in years), Vested and exercisable (in years)	4 years 7 months 2 days
Aggregate Intrinsic Value (in thousands)
Aggregate Intrinsic Value, Outstanding	$ 67,255,182	$ 232,240
Expected to vest	67,255,182
Vested and exercisable	$ 56,053,935